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E-mobility | TRUMPF
E-mobility made with TRUMPF lasers
E-mobility made with TRUMPF lasers

E-mobility made with TRUMPF lasers

Creating the future today.

TRUMPF lasers open up a wide range of manufacturing options to the automotive industry in all areas of electro-mobility, paving the way for a mobile future. From high-end laser systems with the highest beam quality, to intelligent quality assurance systems, right up to the construction of complete production systems: in the field of e-mobility, TRUMPF is your reliable partner. With our extensive industry and application expertise, as well as our global laboratories, we help the sector to understand new technologies. In numerous projects and initiatives, together we develop solutions for the upcoming challenges posed by electro-mobility. Here, we get involved in the entire development process, from the initial idea to the start of production.


TRUMPF provides pioneering solutions for the laser-based manufacture of electric drives, especially for the assembly process of hairpin stators.

Differential gears

TRUMPF lasers enable the reliable, high-quality mass production of differentials for electric cars in a lightweight design.

Low-spatter copper welding

New processes and lasers in the green wavelength spectrum enable the precise and reproducible laser welding of copper with the lowest spatter formation.

Battery production

TRUMPF has developed technologies suited to industrial purposes for the laser welding and laser cutting of a wide range of components from battery systems in electric vehicles.


More than 500 beam sources sold in battery production globally


Around 50 million differentials are produced annually using laser technologies.

97 %

Up to 97% less spatter due to copper welding with green laser light.

Innovative e-mobility applications

Welding of hairpins during production in the electromobility field

E-drives: Hairpin welding

In order to prepare hairpin welding, our customers use TRUMPF short-pulse lasers that ablate the layer of insulating paint, without damaging the copper underneath it. Here, the results of the process are more precise than those of mechanical decoating processes. While welding the hairpins, an intelligent sensor system ensures precise seams and top quality. Thanks to the high level of reproducibility of laser welding processes, our customers achieve consistently high-tensile connections with a good level of conductivity – in a high quantity too.

Butt joints in gear manufacturing

The welding of differential gears

TRUMPF lasers weld the housings of differential gears with bevel gears reliably, flexibly and without contact. Here, they enable the creation of numerous hybrid material connections for lightweight design. The most  common of these is the combination of cast iron and case-hardened steel. The highly precise joining technologies using lasers also help to considerably reduce unwanted running noises from the differential gear during operation.

Copper welding with a laser

Spatter-free joining of copper and aluminium

Due to increasingly compact housings and the higher performance required for electronic components, the requirements for the joining technology of copper and aluminium components are also increasing. A newly developed, pulsed green laser from TRUMPF welds these materials with a high level of reproducibility, also resulting in practically no spatter – irrespective of the surface qualities.

Seam welding on a mobile phone battery

Joining of battery cans

For sensitive battery cells and their housings, or cans, TRUMPF lasers are the perfect solution as they work without contact and with little energy. The material is not subject to any mechanical stress. The locally limited, low heat input guarantees highly precise, distortion-free seams.

Manufacturing of battery cells with TRUMPF lasers

The welding of battery housings

Using TRUMPF lasers, customers can weld battery housings and cell connectors made from copper and aluminium effortlessly and with precise seams. In this manner, increasingly small and powerful cells can be integrated into a battery array. A comprehensive system of sensors monitors the quality of the weld seams and ensures precise welding depths here.

Laser-cut stator plates

Cutting of stator plates

Manufacturers of electric motors use TRUMPF lasers to cut stator plates. Delicate contours can be cut very quickly and precisely using them. Our customers also benefit from the high levels of reproducibility with no deformation during the joining of stator packages in prototype construction.

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White paper: laser welding of hairpins

Hairpins are essential in order to manufacture powerful electric motors for electromobility. In our white paper, you can find out more about how the laser assists you during production and processing. Register for our TRUMPF e-mail news now and download our white paper for free. You will receive deeper insights into the process and its applications in the field of e-mobility. You can unsubscribe from the TRUMPF e-mail news at any time.

White paper download

White paper: new developments when it comes to laser welding of copper contacts, power electronics and control units in the field of electromobility

Thanks to the continuous further development of the beam sources, the application results are also improved. For example, lasers with a green wavelength and sufficient power that are developed to industrial maturity mean that copper contacts can be processed more productively and practically without any spatter in the field of electromobility. You can read more about the latest developments and the numerous possible applications in electromobility in our white paper. Register for our TRUMPF e-mail news now and download our white paper for free. You can unsubscribe from the TRUMPF e-mail news at any time.

Always at the cutting edge of research

TRUMPF is actively involved in the Lightweight Forging Initiative Phase III. For more than five years, around 40 international companies and partners have investigated the lightweight potential of radically redesigned components in the power train and chassis of a hybrid car. TRUMPF is also involved in many other development projects regarding new e-mobility applications and regarding the lightweight design of promising, resource-efficient electro-mobility solutions.

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